package com.study.workflow;

import org.flowable.engine.*;
import org.flowable.engine.impl.cfg.StandaloneProcessEngineConfiguration;
import org.flowable.engine.repository.Deployment;
import org.flowable.engine.repository.ProcessDefinition;
import org.flowable.engine.runtime.ProcessInstance;
import org.flowable.task.api.Task;

import java.util.HashMap;
import java.util.List;
import java.util.Map;
import java.util.Scanner;

/**
 * @author sjw
 * @description
 * @date 2019-08-23 上午8:21
 */
public class Holiday {
    public static void main(String[] args) {
        ProcessEngineConfiguration conf = new StandaloneProcessEngineConfiguration()
                .setJdbcUrl("jdbc:mysql://localhost:3306/work_flow?useUnicode=true&characterEncoding=UTF-8")
                .setJdbcDriver("com.mysql.jdbc.Driver")
                .setJdbcUsername("root")
                .setJdbcPassword("123456")
                .setDatabaseSchemaUpdate(ProcessEngineConfiguration.DB_SCHEMA_UPDATE_TRUE);
        System.out.println("--------------");
        ProcessEngine engine = conf.buildProcessEngine();

        RepositoryService repositoryService = engine.getRepositoryService();
        Deployment deployment = repositoryService.createDeployment().addClasspathResource("holiday-request-bpmn20.xml").deploy();

        ProcessDefinition processDefinition = repositoryService.createProcessDefinitionQuery()
                .deploymentId("1")//
                //.deploymentId(deployment.getId())
                .singleResult();
        System.out.println("Found process definition : " + processDefinition.getName());

        Scanner scanner = new Scanner(System.in);

        System.out.println("Who are you?");
        String employee = scanner.nextLine();

        System.out.println("How many holidays do you want to request?");
        Integer nrOfHolidays = Integer.valueOf(scanner.nextLine());

        System.out.println("Why do you need them?");
        String description = scanner.nextLine();

        RuntimeService runtimeService = engine.getRuntimeService();

        Map<String, Object> variables = new HashMap<String, Object>();
        variables.put("employee", employee);
        variables.put("nrOfHolidays", nrOfHolidays);
        variables.put("description", description);
        ProcessInstance processInstance =runtimeService.startProcessInstanceByKey("holidayRequest", variables);

        Map<String, Object> variables1 = new HashMap<String, Object>();
        TaskService taskService = engine.getTaskService();
        List<Task> tasks = taskService.createTaskQuery().list();
        System.out.println("You have " + tasks.size() + " tasks:");
        for (int i = 0; i < tasks.size(); i++) {
            System.out.println((i + 1) + ") " + tasks.get(i).getName() + "  taskId " + tasks.get(i).getId());
        }
        if (tasks.size() > 10) {
            System.out.println("Which task would you like to complete?");
            int taskIndex = Integer.valueOf(scanner.nextLine());
            Task task = tasks.get(taskIndex - 1);
            Map<String, Object> processVariables = taskService.getVariables(task.getId());
            System.out.println(processVariables.get("employee") + " wants " +
                    processVariables.get("nrOfHolidays") + " of holidays. Do you approve this?");
            boolean approved = scanner.nextLine().toLowerCase().equals("y");
            variables1 = new HashMap<String, Object>();
            variables1.put("approved", approved);
            taskService.complete(task.getId(), variables1);
        }

    }
}
